Digital Network Video Surveillance System
There are following possibilities:
Network fluency is not good.
Client-end resources are limit.
There is multiple-cast group setup in DVR. This mode can result in mosaic. Usually we do not
recommend this mode.
There is privacy mask or channel protection setup.
Current user has no right to monitor.
DVR local video output quality is not good.
16. Network connection is not stable.
There are following possibilities:
Network is not stable.
IP address conflict.
MAC address conflict.
PC or DVR network card is not good.
17. USB backup error.
There are following possibilities:
Burner and DVR are in the same data cable.
System uses too much CPU resources. Please stop record first and then begin backup.
Data amount exceeds backup device capacity. It may result in burner error.
Backup device is not compatible.
Backup device is damaged.
18. Alarm signal can not been disarmed.
There are following possibilities:
Alarm setup is not correct.
Alarm output has been open manually.
Input device error or connection is not correct.
Some program versions may have this problem. Please upgrade your system.
19. Alarm function is null.
There are following possibilities:
Alarm setup is not correct.
Alarm cable connection is not correct.
Alarm input signal is not correct.
There are two loops connect to one alarm device.
Unisight Digital Technologies, Inc.
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